:orphan:
# PetscSFWindowGetInfo
Get the `MPI_Info` handle used for windows allocation
## Synopsis
```
#include "petscsf.h"
PetscErrorCode PetscSFWindowGetInfo(PetscSF sf, MPI_Info *info)
```
Logically Collective
## Input Parameter
- ***sf -*** star forest for communication
## Output Parameter
- ***info -*** `MPI_Info` handle
## Note
If `PetscSFWindowSetInfo()` has not be called, this returns `MPI_INFO_NULL`
## See Also
`PetscSF`, `PETSCSFWINDOW`, `PetscSFSetFromOptions()`, `PetscSFWindowSetInfo()`
## Level
advanced
## Location
src/vec/is/sf/impls/window/sfwindow.c
## Implementations
PetscSFWindowGetInfo_Window in src/vec/is/sf/impls/window/sfwindow.c
---
[Edit on GitLab](https://gitlab.com/petsc/petsc/-/edit/release/src/vec/is/sf/impls/window/sfwindow.c)
[Index of all PetscSF routines](index.md)
[Table of Contents for all manual pages](/manualpages/index.md)
[Index of all manual pages](/manualpages/singleindex.md)